Tos-PEG4-OH,2-[2-[2-(2-Hydroxyethoxy)ethoxy]ethoxy]-1-(p-toluenesulfonyl)-ethanol

Tos-PEG4-OH,2-[2-[2-(2-Hydroxyethoxy)ethoxy]ethoxy]-1-(p-toluenesulfonyl)-ethanol

¥ 1.00 ¥ 1.00 1.0 CNY

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